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公开(公告)号：US20190361167A1
公开(公告)日：2019-11-28
申请号：US16215810
申请日：2018-12-11
发明人： Young Min PARK , Ji Eun Nam
IPC分类号： F21V8/00
摘要： A composite sheet includes a first sheet and a second sheet. The first sheet includes a first substrate and a first optical pattern layer disposed on an upper surface of the first substrate. The second sheet is disposed on the first sheet. The second sheeting includes a second substrate and a second optical pattern layer disposed on an upper surface of the second substrate. An extending direction of the first optical pattern layer intersects an extending direction of the second optical pattern layer such that an intersection angle of the extending direction of the first optical pattern layer and the extending direction of the second optical pattern layer is in a range of 40° to 70°.
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公开(公告)号：US11231617B2
公开(公告)日：2022-01-25
申请号：US17105319
申请日：2020-11-25
发明人： Ji Eun Nam , Do Hun Kim , Ju Youn Son , Young Keun Lee
IPC分类号： G02F1/00 , G02F1/13357
摘要： A backlight unit includes a central area and a peripheral area disposed outside the central area, the backlight unit includes a bottom chassis, a plurality of light sources disposed on a surface of the bottom chassis, a reflective layer disposed on the surface of the bottom chassis, where a plurality of light source insertion holes and a plurality of opening patterns are defined through the reflective layer, and a light correction material layer disposed between the bottom chassis and the reflective layer in the peripheral area, where the light source insertion holes expose the light sources, respectively, and the opening patterns are disposed in the peripheral area to expose at least a portion of the light correction material layer in a thickness direction.
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公开(公告)号：US10802202B2
公开(公告)日：2020-10-13
申请号：US16215810
申请日：2018-12-11
发明人： Young Min Park , Ji Eun Nam
摘要： A composite sheet includes a first sheet and a second sheet. The first sheet includes a first substrate and a first optical pattern layer disposed on an upper surface of the first substrate. The second sheet is disposed on the first sheet. The second sheeting includes a second substrate and a second optical pattern layer disposed on an upper surface of the second substrate. An extending direction of the first optical pattern layer intersects an extending direction of the second optical pattern layer such that an intersection angle of the extending direction of the first optical pattern layer and the extending direction of the second optical pattern layer is in a range of 40° to 70°.
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公开(公告)号：US11493679B2
公开(公告)日：2022-11-08
申请号：US17109117
申请日：2020-12-01
发明人： Hyun Hyang Kim , Hyun Jeong Kim , Ji Eun Nam , Young Keun Lee , Hyeon Mi Lee
IPC分类号： F21V8/00
摘要： A backlight unit for a display device includes: a light guide including a light incident surface; a substrate facing the light incident surface; a plurality of light sources on one surface of the substrate facing the light incident surface; and a first member disposed between the substrate and the light incident surface to space the light sources apart from the light guide. The first member includes: a support on one surface of the substrate that do not include the light source, the support having a first surface facing the light incident surface and a second surface facing the light sources; and a first layer disposed on the first surface and the second surface of the support to improve luminance uniformity across the light incident surface.
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5.发明申请公开(公告)号：US20190041696A1
公开(公告)日：2019-02-07
申请号：US16050961
申请日：2018-07-31
发明人： Do Hun Kim , Young Min Park , Taek Sun Shin , Hyun Hyang Kim , Ji Eun Nam
IPC分类号： G02F1/1335 , F21V8/00
摘要： A backlight unit includes a light guide plate that includes an upper surface, at least one side surface, and an inclined portion disposed at an edge between the upper surface and the at least one side surface, and an optical member that includes a protruding portion disposed on the inclined portion of the light guide plate.
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公开(公告)号：US09740042B2
公开(公告)日：2017-08-22
申请号：US14265480
申请日：2014-04-30
发明人： Ji Eun Nam , Young-Min Park , Seok Hyun Nam
IPC分类号： G09F13/04 , G02F1/1335 , G02B19/00
CPC分类号： G02F1/133526 , G02B19/0028 , G02B19/0061 , G02B19/0071 , G02F1/133603 , G02F2001/133607
摘要： A lens for a backlight of a display device, includes a lower surface, a groove portion defined recessed from the lower surface and comprising a curved surface; and an upper surface comprising an outer edge and a center, in a plan view, of which a distance from the lower surface decreases in a direction from the outer edge to the center.
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7.发明申请公开(公告)号：US20220377921A1
公开(公告)日：2022-11-24
申请号：US17515744
申请日：2021-11-01
发明人： Joo Hyeon Lee , Ji Eun Nam , Heon Jung Shin
摘要： A cover window includes a first film, an adhesive layer below the first film, and a second film below the adhesive layer. The second film includes a base substrate and a pattern layer which is on the base substrate and includes a plurality of protrusions. The pattern layer includes a plurality of protrusions that become narrower in a direction towards the first film. A modulus of the base substrate is about 500 megapascals (MPa) to about 1.5 gigapascals (GPa) when a modulus of the pattern layer is about 5 MPa to about 20 MPa, or the modulus of the base substrate is about 3.5 GPa or more when the modulus of the pattern layer is about 30 MPa to about 50 MPa.
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公开(公告)号：US10996509B2
公开(公告)日：2021-05-04
申请号：US16853193
申请日：2020-04-20
发明人： Ji Eun Nam , Young Min Park
IPC分类号： G02F1/13357
摘要： A backlight unit and a display device including the backlight unit are provided. A backlight unit includes a substrate, light sources on a surface of the substrate, and a light transmission adjustment layer on the surface of the substrate and spaced apart from the light sources in a thickness direction, wherein the light transmission adjustment layer includes a light reflection layer having openings disposed therein, and a light absorption layer containing a light absorption material that is disposed in the openings and absorbs light having predetermined wavelength bands.
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公开(公告)号：US10890697B2
公开(公告)日：2021-01-12
申请号：US15791075
申请日：2017-10-23
发明人： Young Min Park , Do Hun Kim , Hyun Hyang Kim , Ji Eun Nam , Taek Sun Shin
IPC分类号： G02B5/02 , G02F1/1335 , G02B1/04 , G02F1/13357 , G02B5/30
摘要： Provided are a composite optical sheet and a liquid crystal display device including the same. The composite optical sheet includes: a first optical functional layer having a first surface and a second surface, the first surface including a reference plane and a pattern of recesses dented from the reference plane; a first support layer disposed on the first surface of the first optical functional layer; a first adhesive layer disposed between the first optical functional layer and the first support layer, wherein the first optical functional layer is coupled with the first adhesive layer by penetrating into the first adhesive layer at least partially; a second optical functional layer disposed on the first support layer and including a pattern of prisms extended in a first direction; a polarizing layer disposed on the second optical functional layer; and a second adhesive layer disposed between the second optical functional layer and the polarizing layer, wherein the second optical functional layer is coupled with the second adhesive layer by penetrating into the second adhesive layer at least partially.
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公开(公告)号：US10732343B2
公开(公告)日：2020-08-04
申请号：US16373999
申请日：2019-04-03
发明人： Do Hun Kim , Ji Eun Nam , Young Min Park , You Jin Seo , Hyeon Mi Lee , Hyeon Seon Jeong , Taek Sun Shin , Seong Yong Hwang
摘要： An optical member includes a light guide plate, a wavelength conversion layer, and a reflective tape. The wavelength conversion layer is disposed on an upper surface of the light guide plate. The reflective tape includes a first side portion covering first side surfaces of the light guide plate and the wavelength conversion layer. The reflective tape includes a first surface and a second surface. The first surface is configured to reflect light of a first wavelength band and light of a second wavelength band different from the first wavelength band. The second surface is configured to absorb the light of the first wavelength band.
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